oa Southern African Journal of Anaesthesia and Analgesia - Oxygenation during one-lung ventilation : registrar communication
Extracted from text ... REGISTRAR COMMUNICATION Oxygenation during one-lung ventilation These equations may be combined into a single equation.1 Qs/Qt CaO2 = CcO2 - (VO2/Qt) * ---------- Equation-4 10*(1 - Qs/Qt) Equation-4 may be used to construct plots to illustrate the relationship between arterial oxygen content and cardiac output. In addition, it is possible to illustrate by means of these plots how varying Qs/Qt, [Hb] and VO2, influences CaO2. All the variables contained in Equation 4 should be controlled by the anaesthesiologist to maintain adequate arterial oxygenation during OLV. Note that the most important determinant of CcO2 is the haemoglobin concentration. An important ..
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